JEE Mains · Physics · STD 12 - 14. Semicondutor electronics
Given below are two statements : one is labelled as Assertion \(A\) and the other is labelled as Reason \(R\) Assertion \(A :\) Photodiodes are preferably operated in reverse bias condition for light intensity measurement. Reason \(R\) : The current in the forward bias is more than the current in the reverse bias for a \(p - n\) junction diode. In the light of the above statement, choose the correct answer from the options given below :
- A \(A\) is false but \(R\) is true
- B Both \(A\) and \(R\) are true but \(R\) is NOT the correct explanation of \(A\)
- C \(A\) is true but \(R\) is false
- D Both \(A\) and \(R\) are true and \(R\) is the correct explanation of \(A\)
Answer & Solution
Correct Answer
(B) Both \(A\) and \(R\) are true but \(R\) is NOT the correct explanation of \(A\)
Step-by-step Solution
Detailed explanation
Photodiodes are operated in reverse bias as fractional change in current due to light is more easy to detect in reverse bias.
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